Thermoplastic film capable of being sealed by high frequency cur

Details Thermoplastic film capable of being sealed by high frequency cur Thermoplastic film capable of being sealed by high frequency cur

1995-04-14

1997-08-26

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524451, 524492, 428345, 428347, 428521, 1562744, 229 8701, C08K 520, C08K 334, B32B 712, B65D 6500

Patent

active

056612010

ABSTRACT:
The present invention relates to a thermoplastic film including at least one ethylene copolymer, which film is capable of being sealed by a high-frequency current. The film is characterized by its inclusion of a sufficient quantity of at least one N,N'-ethylenebisamide in order to obtain a high-frequency sealing time not exceeding 1 second. The films thus sealed are especially useful for packaging.

REFERENCES:
patent: Re32325 (1987-01-01), Smith
patent: 4183882 (1980-01-01), Weinberg et al.
patent: 5135785 (1992-08-01), Millon
Toppan Printing Co Ltd, Derwent Database WPI, AN 94-132150 (Mar. 1994): abstract of Japanese Patent 60-80838.
Atochem, Derwent Database WPI, AN 91-267111/36 (Sep. 1991): abstract of Canadian Patent 2,036,506.

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